FCTC TEST PREP WRITTEN EXAM REVIEW

FCTC TEST PREP WRITTEN EXAM REVIEW A belt and pulley system is characterized by - ANS-two or more pulleys in common to a belt. What does a belt and pulley system allow for? - ANS-mechanical power, torque, and speed to be transmitted across axles How is mechanical advantage realized? - ANS-if the pulleys are different diameters what is a pulley? - ANS-a wheel on an axle or shaft that is designed to support movement and change of direction of a cable or belt along its circumference Why are pulleys used? - ANS-lift loads apply forces trasmit power What is usually the drive element of a pulley? - ANS-rope, cable, belt or chain that runs over the pulley inside the groove Pulleys are assembled to form what - ANS-a block and tackle in order to provide mechanical advantage to apply large forces rope and pulley systems (block and tackle) are characterized by what? - ANS-the use of a single continuous rope to transmit a tension force around one or more pulleys to lift or move a load the rope may be a light line or a strong cable CONTINUES...